- Allergan
- Alpharma
- Amgen
- Amlyin Pharmaceuticals
- AstraZeneca
- Auxilium
- Avanir
- Azur Pharma
- Baxter
- BioMarin
- Bristol-Myers Squibb Company
- Centocor / Ortho Biotech
- Cephalon, Inc.
- CV Therapeutics
- Cytogen
- Daiichi Sankyo Co,. LTD.
- Eisai
- Élan
- Eli Lilly and Company
- Ferring Pharmaceuticals
- Forest Laboratories, Inc.
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- Genentech
- Grupo Mexico - Rimsa
- INO Therapeutics
- King Pharmaceuticals
- Kos
- Myogen
- Novartis
- NPS Pharmaceuticals
- Otsuka
- Pfizer
- Purdue
- Roche
- Schering-Plough
- Sepracor
- Skin Medica
- Smith & Nephew
- Solvay Pharmaceuticals
- Synthon Pharmaceuticals, Ltd.
- TaroPharma
- UCB
- Wyeth
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